Title:
AIR-FEEDING DEVICE, WHEEL, AND TIRE UNIT
Document Type and Number:
Japanese Patent JP3912184
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an air-feeding device of which the structure is simple and which can automatically and surely feed air to the air-filling part of a rotating body, and to provide a wheel and a tire unit.
SOLUTION: This air-feeding device 4 has a device body 5 equipped with a cylinder 50 and a piston 6 which is movably installed in the cylinder 50. The device body 5 is bonded at the middle of a valve 31 so that a through hole 54 communicates with a channel of the valve 31. The moving direction of the piston 6 approximately matches the radial direction of a tire unit 1 (wheel 3), and the piston 6 can move by a centrifugal force generated by the rotation of the tire unit 1. At the lower side of the piston 6 in the cylinder 50, a locking part 51 which locks the piston 6 is formed, and also, a coil spring 7 is installed. Also, a regulating screw 8, check valves 12 and 13, and an air filter 11 are provided in the device body 5.
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Inventors:
Yutaka Akahori
Application Number:
JP2002152295A
Publication Date:
May 09, 2007
Filing Date:
May 27, 2002
Export Citation:
Assignee:
Seiko Epson Corporation
International Classes:
B60C23/12; F04B35/00; (IPC1-7): B60C23/12; F04B35/00
Domestic Patent References:
| JP9508870A | ||||
| JP6510252A |
Foreign References:
| US5865917 | ||||
| WO2003066354A1 | ||||
| US4349064 |
Attorney, Agent or Firm:
Masahiko Ueyanagi
Fujitsuna Hideyoshi
Osamu Suzawa
Fujitsuna Hideyoshi
Osamu Suzawa
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